Grate-bar.



PATENTED APR. 9, 1907.

c. H. BATON. GRA-TBBAR.

APILIOATIOH FILED JAR. 7, 1907.

W6 It" cacao c m m M u w V w I w I N 7 UNITED STATES To all whom it may concern:

Be it known that I, CHARLES H. EATON, a citizen of the United States, residing at Ridlonville, in the county of Oxford and State of Maine, have invented new and useful Imowing is a specification.

' This inventionrelates to grate-bars of th t e em loyed in the construction of movab 6 en 1 ess-grates andin which the bars'are f connected' -by'chains. or the like; through the medium of pivoting members or trunnions formed on the bars, 1t being customary under thepres'en "general practice torecess the bars nitab'l'ei,

operationi'ot formingf-i'thegtrunnions, which mode is, however, seriously objectionable, owing to the extreme liability of the bars breaking at the weakened points, resulting from the formation of the recesses.

This invention has for its objects to provide a comparatively simple inexpensive bar of this type wherein the practice of recessing the bars, together with the objectionable features attendant thereon, are avoided and one wherein the bar is materially strengthened at the points of attachment of the trunnions therewith.

With these and other objects in view the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure 1 is a side elevation of a grate-bar embodying the invention. Fig. 2 is a section taken centrally and longitudinally tnerethrough. Fig.

" 3 is a perspective view of one of the pivoting members and the core by which it is carried.

'trally in the bar 1 'at appropriately-spaced in- Specification ofLetters Patent.

Application filed January 7, 1907. Serial No. 351,152.

rovements in Grate-Bars, of whichthe'folpoints between their ends Fig. 4 is a detail sectional view taken on the PATENT OFFICE.

CHARLES H. EATON, OF RIDLONVILLE, MAINE.

GRATE-BAR.

Patented April 9, 1907.

which are in part embedded in the. material of the bar 1 and terminated beyond the face of the latter in horizontal chain-engaging portions or trunnions 5, spaced from and extended parallel with the adjacent face of the bar. I

In practice the-portions 5 of the pivoting .members are pivotally engaged; as j'i'sual, with the endless chains or belt-'sgtowhichase ries of the bars-=1 are attached in the forma tion of the grate, it being noted that under I the improved construction the necessity for recessing the bar, with consequent weakening of the latter, is obviated, and ,further, that the cores 3, to which the ivoting members are attached, serve the two old function of maintaining the pivoting members in secure enagement with the bars and of strengthenm9 the latter.

IIaving thus described my invention, what I claim is 1. A grate-bar having a strengtheningcore embedded therein and a pivoting member attached to the core and terminated beyond the face of the bar in the pivoting-trunnion.

2. A grate-bar having a strengtheningcore embedded therein and a ivoting member attached to said coiean embedded in part in the bar, said ivoting member being terminated beyond the face of the bar in a chain-engaging portion.

3. A cast-metal grate-bar having a longitudinally-extended strengthening-piece embedded therein and a pivoting memberattached to said piece and embedded in part in the bar, .aid pivoting member terminated beyond the face of the bar in a chain-engaging portion.

11 testimony whereof I aflix my signature in presence of two witnesses.

CHARLES H. EATON.

Witnesses:

ARETAs E. STEARNS, J. G. D. LE BEL. 

